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  DooYoung Hah

Assistant Professor
Department of Electrical and Computer Engineering
Louisiana State University

Address: 102 S. Campus Dr., Baton Rouge, LA 70803-5901
Office:     EE 229
Tel:         225-578-5532
Fax:        225-578-5200
E-mail:    dyhah@lsu.edu
 Research Interests
  • Optical microsystems
  • RF MEMS
  • Microsystems for biomedical imaging
  • Microactuators/microsensors
  • Energy harvesting devices
  • Nanotechnology
 Biographical Sketch
Dooyoung Hah was born in Seoul, Korea. He received his B.S.(1994), M.S.(1996), and Ph.D.(2000) degrees all in Electrical Engineering from the Korea Advanced Institute of Science and Technology (KAIST). Professor Songcheol Hong has been his advisor during his graduate study. He continued his research at the Integrated Photonics Laboratory (IPL), University of California, Los Angeles (UCLA) as a Research Associate under supervision of Professor Ming C. Wu (now at UC Berkeley). He also has worked at the Electronics and Telecommunications Research Institute (ETRI), Korea as a Senior Member of Research Staff. Currently, he is an Assistant Professor of Electrical and Computer Engineering at Louisiana State University, Baton Rouge.
 Selected Publications
  • Jui-Che Tsai, Sophia Huang, Dooyoung Hah, and Ming C. Wu, “1xN2 Wavelength-Selective Switch with Two Cross-Scanning One-Axis Analog Micormirror Arrays in a 4-f Optical System,” IEEE Journal of Lightwave Technology, Vol. 24, No. 2, pp. 897-903, Feb. 2006.
  • Wibool Piyawattanametha, Pamela R. Patterson, Dooyoung Hah, Hiroshi Toshiyoshi, and Ming C. Wu, “High Performance Surface- and Bulk- Micromachined Two Dimensional Angular Vertical Comb Actuators Scanner,” IEEE/ASME Journal of Microelectromechanical Systems, Vol. 14, No. 6, pp. 1329-1338, Dec. 2005.
  • Dooyoung Hah, Chang-Auck Choi, Chang-Kyu Kim, and Chi-Hoon Jun, “A Self-Aligned Vertical Comb-Drive Actuator on an SOI Wafer for a 2-D Scanning Micromirror,” Journal of Micromechanics and Microengineering, Vol. 14, No. 8, pp. 1148-1156, Aug. 2004.
  • Hung Nguyen, Dooyoung Hah, Pamela R. Patterson, Ru-Min Chao, Wibool Piyawattanametha, Erwin Lau, and Ming C. Wu, “Angular Vertical Comb Driven Tunable Capacitor with High Tuning Capabilities,” IEEE/ASME Journal of Microelectromechanical Systems, Vol. 13, No. 3, pp. 406-413, Jun. 2004.
  • Dooyoung Hah, Sophia Huang, Jui-Che Tsai, Hiroshi Toshiyoshi, and Ming C. Wu, “Low Voltage, Large Scan Angle MEMS Analog Micromirror Arrays with Hidden Vertical Comb-Drive Actuators,” IEEE/ASME Journal of Microelectromechanical Systems, Vol. 13, No. 2, pp. 279-289, Apr. 2004.
  • Dooyoung Hah, Euisik Yoon, and Songcheol Hong, “A Low Voltage Actuated Micromachined Microwave Switch Using Torsion Springs and Leverage,” IEEE Trans. Microwave Theory and Technology, Vol. 48, No. 12, pp. 2540-2545, Dec. 2000.